Statics and dynamics of 2D colloidal crystals in a random pinning potential

被引：106
|
作者：
Pertsinidis, Alexandros [1 ]
Ling, Xinsheng Sean [1 ]
机构：
[1] Brown Univ, Dept Phys, Providence, RI 02912 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 02期
关键词：
D O I：
10.1103/PhysRevLett.100.028303
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the first experimental study of a model system of a two-dimensional colloidal crystal in a random pinning potential. The colloidal crystal consists of monodispersed charged polystyrene microspheres suspended in deionized aqueous media and confined near a rough charged surface. It is found that the static orientational correlation function g(6)(r) decays exponentially for intermediate and strong pinning, in agreement with theories. The driven depinning is dominated by thermally activated creep motion along 1D-like channels between regions with short-range order. A coexistence model is proposed for describing the observations.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] In-situ microscope observation of the growth of 2D colloidal crystals in a sessile drop
    Yu, Jie
    Gao, Li
    Yan, Qingfeng
    Shen, Dezhong
    Wong, C. C.
    JOURNAL OF CRYSTAL GROWTH, 2011, 318 (01) : 1129 - 1133
  • [32] Formation and manipulation of 2D colloidal crystals driven by convective currents and electrostatic forces
    Ramirez-Ramirez, J.
    Sarabia-Alonso, J. A.
    Vazquez-Lozano, J.
    Peregrina-Barreto, H.
    Mansurova, S.
    Ramos-Garcia, R.
    OPTICS AND LASER TECHNOLOGY, 2023, 161
  • [33] 2D Colloidal Crystals based SERS Sensors for NH3 Detection
    Kumar, Pawan
    Soni, Mahesh
    Arora, Tarun
    Sharma, Satinder K.
    2015 IEEE INTERNATIONAL SYMPOSIUM ON NANOELECTRONIC AND INFORMATION SYSTEMS, 2015, : 277 - 280
  • [34] Vortexlike Topological Defects in Nematic Colloids: Chiral Colloidal Dimers and 2D Crystals
    Tkalec, U.
    Ravnik, M.
    Zumer, S.
    Musevic, I.
    PHYSICAL REVIEW LETTERS, 2009, 103 (12)
  • [35] Fabrication of Ordered 2D Colloidal Crystals on Flat and Patterned Substrates by Spin Coating
    Banik, Meneka
    Mukherjee, Rabibrata
    ACS OMEGA, 2018, 3 (10): : 13422 - 13432
  • [36] DYNAMICS OF FRONTS, NUCLEI AND PATTERNS IN 2D RANDOM-MEDIA
    EBELING, W
    ENGEL, A
    SCHIMANSKYGEIER, L
    ZULICKE, C
    PHYSICA D, 1991, 49 (1-2): : 170 - 176
  • [37] On a global minimum of potential energy in molecular statics: An example of a 2D Lennard-Jones crystal
    Vinogradov, Oleg
    COMPUTATIONAL MATERIALS SCIENCE, 2008, 42 (03) : 478 - 482
  • [38] Dynamics of thin-layered colloidal crystals from single layer to multi layers; Crossover behavior from 2D to 3D
    Ueno, T.
    Hamano, K.
    Nishio, I.
    FLOW DYNAMICS, 2006, 832 : 263 - +
  • [39] Dynamics of Quantum Particles in Perturbed Parabolic 2d Potential
    Mazmanishvili, A. S.
    Knyaz, I. A.
    JOURNAL OF NANO- AND ELECTRONIC PHYSICS, 2016, 8 (04)
  • [40] APPLICATION POTENTIAL OF 2D PROTEIN CRYSTALS (S-LAYERS)
    SLEYTR, UB
    SARA, M
    MESSNER, P
    PUM, D
    BIOCHEMICAL ENGINEERING VIII, 1994, 745 : 261 - 269
12345